Design Guide for Disaster Recovery for Dell
Introduction
The Design section provides architectural guidance for implementing disaster recovery (DR) with Eyeglass. It covers supported failover types, topology considerations, and critical planning elements to help ensure a resilient deployment.
Use this section to learn how failover works across SyncIQ policies, Access Zones, IP Pools, and DFS configurations. Explore best practices for DR planning, readiness validation, quota handling, and recovery procedures. These resources are essential when designing or optimizing your DR strategy.
Failover Design
Understand the different failover methods available in Eyeglass, including SyncIQ Policy, Access Zone, IP Pool, and DFS failover. Each type supports unique DR use cases and network architectures. This section explains how each failover type works, what is required for setup, and what to expect after a failover is completed.
Failover Planning
A successful DR operation depends on thorough preparation. This section walks through the critical planning steps to take before, during, and after a failover. It includes pre-failover checklists, benchmarks for Access Zone and DFS-type failover, training recommendations, and scripting options to automate post-failover tasks.
Controlled vs. Uncontrolled Failover
Understand when to use a controlled failover versus an uncontrolled failover, and the scenarios that warrant each approach.
Choosing a Failover Type
Compare Eyeglass failover types and client-side failover experience to select the right DR design for your environment.
Supported DR Site and Failover Topologies
Review supported disaster recovery site topologies for Eyeglass PowerScale failover, including data center to data center, multi-site, fan-in, and 2-site stretch designs.
Domain Mark and Failback Preparation
Learn what a SyncIQ domain is, why creating one speeds up failback, and how to create and verify one on PowerScale before failover.
Failover Best Practices
Review DNS, SPN, DFS, and Access Zone design best practices, plus data loss considerations and failover step timeouts.
Failover Process and Customer Role
Understand the division of responsibility between Superna Support and your organization during a failover, how to open and classify a failover support case, and the planning process required for planned events.
IPv6 Requirements and Considerations
Review the requirements for supporting IPv6 client access alongside Eyeglass DR edition failover.